Ball Jointed Leveling Feet GN 638

Product description

Information

Ball jointed leveling feet GN 638 are used for installing and leveling devices or for pressing and clamping.
The stainless steel version can also be used in more aggressive environments thanks to the materials used.

Together with the thrust pad, the ball thrust point forms a ball joint that adapts to mounting surfaces that are uneven or not perpendicular to the screw axis. It also prevents the clamping surface from rotating when the thrust pad is in contact with the clamping surface.

The ball jointed leveling feet are supplied unassembled. The ball end of the threaded stud can be easily pressed into the thrust pad and removed again if needed. The ball diameter d₃ is smaller than the core diameter of the thread, with the effect that the threaded stud can be screwed in on the ball side.

The indicated static load serves as a guide value; a corresponding safety factor must be additionally taken into account depending on the application.

Specification

Thrust pad
Stainless steel AISI 303
O-ring: Rubber FPM (Viton^®)
Operating temperature up to 392 °F (200 °C)

Grub screw
Stainless steelNV AISI 303

RoHS

Build & Price

Part Number	d₁	d₂	l₁	d₃ ≈	l₂	A/F	Static load F_s (See information)

638-21-3/8X16-34-NV	0.83	3/8 x 16	1.34	0.24	0.39	3/16	2473 lbf (11 kN)
638-21-3/8X16-44-NV	0.83	3/8 x 16	1.73	0.24	0.39	3/16	2473 lbf (11 kN)
638-21-3/8X16-57-NV	0.83	3/8 x 16	2.24	0.24	0.39	3/16	2473 lbf (11 kN)
638-21-3/8X16-74-NV	0.83	3/8 x 16	2.91	0.24	0.39	3/16	2473 lbf (11 kN)
638-21-1/2X13-34-NV	0.83	1/2 x 13	1.34	0.31	0.39	3/16	3597 lbf (16 kN)
638-21-1/2X13-57-NV	0.83	1/2 x 13	2.24	0.31	0.39	3/16	3597 lbf (16 kN)
638-21-1/2X13-74-NV	0.83	1/2 x 13	2.91	0.31	0.39	3/16	3597 lbf (16 kN)
638-21-1/2X13-94-NV	0.83	1/2 x 13	3.70	0.31	0.39	3/16	3597 lbf (16 kN)
638-25-3/8X16-34-NV	0.98	3/8 x 16	1.34	0.24	0.41	3/16	2473 lbf (11 kN)
638-25-3/8X16-44-NV	0.98	3/8 x 16	1.73	0.24	0.41	3/16	2473 lbf (11 kN)
638-25-3/8X16-57-NV	0.98	3/8 x 16	2.24	0.24	0.41	3/16	2473 lbf (11 kN)
638-25-3/8X16-74-NV	0.98	3/8 x 16	2.91	0.24	0.41	3/16	2473 lbf (11 kN)
638-25-1/2X13-34-NV	0.98	1/2 x 13	1.34	0.31	0.41	3/16	3597 lbf (16 kN)
638-25-1/2X13-57-NV	0.98	1/2 x 13	2.24	0.31	0.41	3/16	3597 lbf (16 kN)
638-25-1/2X13-74-NV	0.98	1/2 x 13	2.91	0.31	0.41	3/16	3597 lbf (16 kN)
638-25-1/2X13-94-NV	0.98	1/2 x 13	3.70	0.31	0.41	3/16	3597 lbf (16 kN)
638-32-3/8X16-34-NV	1.26	3/8 x 16	1.34	0.24	0.43	3/16	2473 lbf (11 kN)
638-32-3/8X16-44-NV	1.26	3/8 x 16	1.73	0.24	0.43	3/16	2473 lbf (11 kN)
638-32-3/8X16-57-NV	1.26	3/8 x 16	2.24	0.24	0.43	3/16	2473 lbf (11 kN)
638-32-3/8X16-74-NV	1.26	3/8 x 16	2.91	0.24	0.43	3/16	2473 lbf (11 kN)
638-32-1/2X13-34-NV	1.26	1/2 x 13	1.34	0.31	0.43	3/16	3597 lbf (16 kN)
638-32-1/2X13-57-NV	1.26	1/2 x 13	2.24	0.31	0.43	3/16	3597 lbf (16 kN)
638-32-1/2X13-74-NV	1.26	1/2 x 13	2.91	0.31	0.43	3/16	3597 lbf (16 kN)
638-32-1/2X13-94-NV	1.26	1/2 x 13	3.70	0.31	0.43	3/16	3597 lbf (16 kN)
638-40-3/8X16-34-NV	1.57	3/8 x 16	1.34	0.24	0.51	3/16	2473 lbf (11 kN)
638-40-3/8X16-44-NV	1.57	3/8 x 16	1.73	0.24	0.51	3/16	2473 lbf (11 kN)
638-40-3/8X16-57-NV	1.57	3/8 x 16	2.24	0.24	0.51	3/16	2473 lbf (11 kN)
638-40-3/8X16-74-NV	1.57	3/8 x 16	2.91	0.24	0.51	3/16	2473 lbf (11 kN)
638-40-1/2X13-34-NV	1.57	1/2 x 13	1.34	0.31	0.51	3/16	3597 lbf (16 kN)
638-40-1/2X13-57-NV	1.57	1/2 x 13	2.24	0.31	0.51	3/16	3597 lbf (16 kN)
638-40-1/2X13-74-NV	1.57	1/2 x 13	2.91	0.31	0.51	3/16	3597 lbf (16 kN)
638-40-1/2X13-94-NV	1.57	1/2 x 13	3.70	0.31	0.51	3/16	3597 lbf (16 kN)
638-50-3/8X16-34-NV	1.97	3/8 x 16	1.34	0.24	0.51	3/16	2473 lbf (11 kN)
638-50-3/8X16-44-NV	1.97	3/8 x 16	1.73	0.24	0.51	3/16	2473 lbf (11 kN)
638-50-3/8X16-57-NV	1.97	3/8 x 16	2.24	0.24	0.51	3/16	2473 lbf (11 kN)
638-50-3/8X16-74-NV	1.97	3/8 x 16	2.91	0.24	0.51	3/16	2473 lbf (11 kN)
638-50-1/2X13-34-NV	1.97	1/2 x 13	1.34	0.31	0.51	3/16	3597 lbf (16 kN)
638-50-1/2X13-57-NV	1.97	1/2 x 13	2.24	0.31	0.51	3/16	3597 lbf (16 kN)
638-50-1/2X13-74-NV	1.97	1/2 x 13	2.91	0.31	0.51	3/16	3597 lbf (16 kN)
638-50-1/2X13-94-NV	1.97	1/2 x 13	3.70	0.31	0.51	3/16	3597 lbf (16 kN)
638-21-M6-26-NV	0.83	M 6	1.02	0.18	0.39	3	787 lbf (3.5 kN)
638-21-M6-36-NV	0.83	M 6	1.42	0.18	0.39	3	787 lbf (3.5 kN)
638-21-M6-46-NV	0.83	M 6	1.81	0.18	0.39	3	787 lbf (3.5 kN)
638-21-M8-20-NV	0.83	M 8	0.79	0.24	0.39	4	1574 lbf (7 kN)
638-21-M8-35-NV	0.83	M 8	1.38	0.24	0.39	4	1574 lbf (7 kN)
638-21-M8-45-NV	0.83	M 8	1.77	0.24	0.39	4	1574 lbf (7 kN)
638-21-M8-58-NV	0.83	M 8	2.28	0.24	0.39	4	1574 lbf (7 kN)
638-21-M10-34-NV	0.83	M 10	1.34	0.31	0.39	5	2473 lbf (11 kN)
638-21-M10-44-NV	0.83	M 10	1.73	0.31	0.39	5	2473 lbf (11 kN)
638-21-M10-57-NV	0.83	M 10	2.24	0.31	0.39	5	2473 lbf (11 kN)
638-21-M10-74-NV	0.83	M 10	2.91	0.31	0.39	5	2473 lbf (11 kN)
638-21-M12-34-NV	0.83	M 12	1.34	0.37	0.39	6	3597 lbf (16 kN)
638-21-M12-57-NV	0.83	M 12	2.24	0.37	0.39	6	3597 lbf (16 kN)
638-21-M12-74-NV	0.83	M 12	2.91	0.37	0.39	6	3597 lbf (16 kN)
638-21-M12-94-NV	0.83	M 12	3.70	0.37	0.39	6	3597 lbf (16 kN)
638-25-M6-26-NV	0.98	M 6	1.02	0.18	0.41	3	787 lbf (3.5 kN)
638-25-M6-36-NV	0.98	M 6	1.42	0.18	0.41	3	787 lbf (3.5 kN)
638-25-M6-46-NV	0.98	M 6	1.81	0.18	0.41	3	787 lbf (3.5 kN)
638-25-M8-20-NV	0.98	M 8	0.79	0.24	0.41	4	1574 lbf (7 kN)
638-25-M8-35-NV	0.98	M 8	1.38	0.24	0.41	4	1574 lbf (7 kN)
638-25-M8-45-NV	0.98	M 8	1.77	0.24	0.41	4	1574 lbf (7 kN)
638-25-M8-58-NV	0.98	M 8	2.28	0.24	0.41	4	1574 lbf (7 kN)
638-25-M10-34-NV	0.98	M 10	1.34	0.31	0.41	5	2473 lbf (11 kN)
638-25-M10-44-NV	0.98	M 10	1.73	0.31	0.41	5	2473 lbf (11 kN)
638-25-M10-57-NV	0.98	M 10	2.24	0.31	0.41	5	2473 lbf (11 kN)
638-25-M10-74-NV	0.98	M 10	2.91	0.31	0.41	5	2473 lbf (11 kN)
638-25-M12-34-NV	0.98	M 12	1.34	0.37	0.41	6	3597 lbf (16 kN)
638-25-M12-57-NV	0.98	M 12	2.24	0.37	0.41	6	3597 lbf (16 kN)
638-25-M12-74-NV	0.98	M 12	2.91	0.37	0.41	6	3597 lbf (16 kN)
638-25-M12-94-NV	0.98	M 12	3.70	0.37	0.41	6	3597 lbf (16 kN)
638-32-M6-26-NV	1.26	M 6	1.02	0.18	0.43	3	787 lbf (3.5 kN)
638-32-M6-36-NV	1.26	M 6	1.42	0.18	0.43	3	787 lbf (3.5 kN)
638-32-M6-46-NV	1.26	M 6	1.81	0.18	0.43	3	787 lbf (3.5 kN)
638-32-M8-20-NV	1.26	M 8	0.79	0.24	0.43	4	1574 lbf (7 kN)
638-32-M8-35-NV	1.26	M 8	1.38	0.24	0.43	4	1574 lbf (7 kN)
638-32-M8-45-NV	1.26	M 8	1.77	0.24	0.43	4	1574 lbf (7 kN)
638-32-M8-58-NV	1.26	M 8	2.28	0.24	0.43	4	1574 lbf (7 kN)
638-32-M10-34-NV	1.26	M 10	1.34	0.31	0.43	5	2473 lbf (11 kN)
638-32-M10-44-NV	1.26	M 10	1.73	0.31	0.43	5	2473 lbf (11 kN)
638-32-M10-57-NV	1.26	M 10	2.24	0.31	0.43	5	2473 lbf (11 kN)
638-32-M10-74-NV	1.26	M 10	2.91	0.31	0.43	5	2473 lbf (11 kN)
638-32-M12-34-NV	1.26	M 12	1.34	0.37	0.43	6	3597 lbf (16 kN)
638-32-M12-57-NV	1.26	M 12	2.24	0.37	0.43	6	3597 lbf (16 kN)
638-32-M12-74-NV	1.26	M 12	2.91	0.37	0.43	6	3597 lbf (16 kN)
638-32-M12-94-NV	1.26	M 12	3.70	0.37	0.43	6	3597 lbf (16 kN)
638-40-M8-20-NV	1.57	M 8	0.79	0.24	0.51	4	1574 lbf (7 kN)
638-40-M8-35-NV	1.57	M 8	1.38	0.24	0.51	4	1574 lbf (7 kN)
638-40-M8-45-NV	1.57	M 8	1.77	0.24	0.51	4	1574 lbf (7 kN)
638-40-M8-58-NV	1.57	M 8	2.28	0.24	0.51	4	1574 lbf (7 kN)
638-40-M10-34-NV	1.57	M 10	1.34	0.31	0.51	5	2473 lbf (11 kN)
638-40-M10-44-NV	1.57	M 10	1.73	0.31	0.51	5	2473 lbf (11 kN)
638-40-M10-57-NV	1.57	M 10	2.24	0.31	0.51	5	2473 lbf (11 kN)
638-40-M10-74-NV	1.57	M 10	2.91	0.31	0.51	5	2473 lbf (11 kN)
638-40-M12-34-NV	1.57	M 12	1.34	0.37	0.51	6	3597 lbf (16 kN)
638-40-M12-57-NV	1.57	M 12	2.24	0.37	0.51	6	3597 lbf (16 kN)
638-40-M12-74-NV	1.57	M 12	2.91	0.37	0.51	6	3597 lbf (16 kN)
638-40-M12-94-NV	1.57	M 12	3.70	0.37	0.51	6	3597 lbf (16 kN)
638-50-M8-20-NV	1.97	M 8	0.79	0.24	0.61	4	1574 lbf (7 kN)
638-50-M8-35-NV	1.97	M 8	1.38	0.24	0.61	4	1574 lbf (7 kN)
638-50-M8-45-NV	1.97	M 8	1.77	0.24	0.61	4	1574 lbf (7 kN)
638-50-M8-58-NV	1.97	M 8	2.28	0.24	0.61	4	1574 lbf (7 kN)
638-50-M10-34-NV	1.97	M 10	1.34	0.31	0.61	5	2473 lbf (11 kN)
638-50-M10-44-NV	1.97	M 10	1.73	0.31	0.61	5	2473 lbf (11 kN)
638-50-M10-57-NV	1.97	M 10	2.24	0.31	0.61	5	2473 lbf (11 kN)
638-50-M10-74-NV	1.97	M 10	2.91	0.31	0.61	5	2473 lbf (11 kN)
638-50-M12-34-NV	1.97	M 12	1.34	0.37	0.61	6	3597 lbf (16 kN)
638-50-M12-57-NV	1.97	M 12	2.24	0.37	0.61	6	3597 lbf (16 kN)
638-50-M12-74-NV	1.97	M 12	2.91	0.37	0.61	6	3597 lbf (16 kN)
638-50-M12-94-NV	1.97	M 12	3.70	0.37	0.61	6	3597 lbf (16 kN)

d₁	d₂	l₁	d₃ ≈	l₂	A/F	Static load F_s (See information)

0.83	3/8 x 16	1.34	1.73	2.24	2.91	0.24	0.39	3/16	2473 lbf (11 kN)
0.83	1/2 x 13	1.34	2.24	2.91	3.70	0.31	0.39	3/16	3597 lbf (16 kN)
0.98	3/8 x 16	1.34	1.73	2.24	2.91	0.24	0.41	3/16	2473 lbf (11 kN)
0.98	1/2 x 13	1.34	2.24	2.91	3.70	0.31	0.41	3/16	3597 lbf (16 kN)
1.26	3/8 x 16	1.34	1.73	2.24	2.91	0.24	0.43	3/16	2473 lbf (11 kN)
1.26	1/2 x 13	1.34	2.24	2.91	3.70	0.31	0.43	3/16	3597 lbf (16 kN)
1.57	3/8 x 16	1.34	1.73	2.24	2.91	0.24	0.51	3/16	2473 lbf (11 kN)
1.57	1/2 x 13	1.34	2.24	2.91	3.70	0.31	0.51	3/16	3597 lbf (16 kN)
1.97	3/8 x 16	1.34	1.73	2.24	2.91	0.24	0.51	3/16	2473 lbf (11 kN)
1.97	1/2 x 13	1.34	2.24	2.91	3.70	0.31	0.51	3/16	3597 lbf (16 kN)

d₁	d₂	l₁	d₃ ≈	l₂	A/F	Static load F_s (See information)

0.83	M 6	1.02	1.42	1.81	-	0.18	0.39	3	787 lbf (3.5 kN)
0.83	M 8	0.79	1.38	1.77	2.28	0.24	0.39	4	1574 lbf (7 kN)
0.83	M 10	1.34	1.73	2.24	2.91	0.31	0.39	5	2473 lbf (11 kN)
0.83	M 12	1.34	2.24	2.91	3.70	0.37	0.39	6	3597 lbf (16 kN)
0.98	M 6	1.02	1.42	1.81	-	0.18	0.41	3	787 lbf (3.5 kN)
0.98	M 8	0.79	1.38	1.77	2.28	0.24	0.41	4	1574 lbf (7 kN)
0.98	M 10	1.34	1.73	2.24	2.91	0.31	0.41	5	2473 lbf (11 kN)
0.98	M 12	1.34	2.24	2.91	3.70	0.37	0.41	6	3597 lbf (16 kN)
1.26	M 6	1.02	1.42	1.81	-	0.18	0.43	3	787 lbf (3.5 kN)
1.26	M 8	0.79	1.38	1.77	2.28	0.24	0.43	4	1574 lbf (7 kN)
1.26	M 10	1.34	1.73	2.24	2.91	0.31	0.43	5	2473 lbf (11 kN)
1.26	M 12	1.34	2.24	2.91	3.70	0.37	0.43	6	3597 lbf (16 kN)
1.57	M 8	0.79	1.38	1.77	2.28	0.24	0.51	4	1574 lbf (7 kN)
1.57	M 10	1.34	1.73	2.24	2.91	0.31	0.51	5	2473 lbf (11 kN)
1.57	M 12	1.34	2.24	2.91	3.70	0.37	0.51	6	3597 lbf (16 kN)
1.97	M 8	0.79	1.38	1.77	2.28	0.24	0.61	4	1574 lbf (7 kN)
1.97	M 10	1.34	1.73	2.24	2.91	0.31	0.61	5	2473 lbf (11 kN)
1.97	M 12	1.34	2.24	2.91	3.70	0.37	0.61	6	3597 lbf (16 kN)

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Total US Dollars (net)

$13.86

In Stock: 36

In Stock

Quantity

Please note our quantity discounts (US Dollars).

Min	Max	Price
1	249	$13.86
250	499	$12.71
500	999	$11.55
≥ 1000		$10.40

Prop 65: Not compliant

WARNING:
Cancer and Reproductive Harm - www.P65Warnings.ca.gov

RoHS: Compliant

This article is RoHS-compliant in application of Annex III., which means it complies with EU Directive 2011/65/EU, including extension (2015/863/EU), for restricting the use of certain hazardous substances in electrical and electronic devices. The Directive regulates the use of hazardous substances in devices and components. The implementation in national law is summarily described with RoHS(Restriction of (the use of certain) hazardous substances)).

Weight: 0.070 lbs

If weight is not listed, please contact our Sales Department for additional information regarding weight.
Phone: 800-877-8351

All Prices are in US Dollars. Taxes Not Included.